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Tc   -   Technetium (43/96.906)

Material List
Tc (3)
1 material, 3 document(s) are retrieved.
  • Naturally occurring isotopes: None
  • Density: 11.496 (298.15K) g/cm3
  • Melting point: 2172 oC
  • Boiling point: 4877 oC
  • Latent heat of fusion: 235 J/g
  • Specific heat: 0.24 J/g/K (at room temp.)
  • Coefficient of lineal thermal expansion: cm/cm/K (at room temp.)
  • Thermal conductivity: 5.06E-01 W/cm/K (at room temp.)
  • Electrical resistivity: hm-cm (at room temp.)
  • lonization potential (1st): 7.28 eV
  • Electronic work function Φ:
  • Oxidation potentials: Tc → Tc2+ + 2e = -0.4 V
  • Chemical valence: 0 1 2 3 4 5 6 7
  • Electrochemical equivalents: 0.51651 g/amp-hr
  • lonic radius: 0.56 angstrom
  • Valence electron potential: 180 -eV
  • Principal quantum number: 5
  • Principal electron shells: K L M N O
  • Electronic configuration: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d6 5s1
  • Valence electrons: 4d6 5s1
  • Crystal form: HCP
  • Half life: 2.6E6 years
  • Cross section σ: barns
  • Vapor pressure: 2.29E-02 Pa (at melting point)